Aircraft



FIG. 1 is a top perspective view of an aircraft showing our new design;

FIG. 2 is a side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a left side elevation view thereof.

The broken lines in the drawings showing elements of the aircraft represent unclaimed portions of the aircraft and form no part of the claimed design. 

CLAIM The ornamental design for an aircraft, as shown and described. 